Punched card data processing pronciples, 24-26 punch/56 verifier operation illustrations 

 - New York  Education Development  1967 
 - v.p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programming
<br/><br/><label>Dewey Class. No.: </label>I5372 In8/PIC/8